Fig. 4: Angle-resolved photoemission spectroscopy.
From: Attosecond intra-valence band dynamics and resonant-photoemission delays in W(110)
a Effective density of states in tungsten as defined by the visible parts of the Brillouin zone at our spectrometer acceptance angle of ±7° around 32 eV kinetic energy. b Angle-resolved photoemission spectrogram along the Γ–P axis measured in the wide-angle mode of our spectrometer with an angle acceptance of ±15°. Black lines display the occupied bands in the Γ–P and N–P directions. It is noteworthy that this measurement was taken by quasi-monochromatic excitation dominated by one strong harmonic. The displayed bands refer to excitation with this dominating harmonic and are only displayed up to their Fermi level. c Simulated angle-resolved photoemission spectrogram for the same geometry and measured XUV spectrum as in b.
